47239437 has 16 divisors (see below), whose sum is σ = 73165952. Its totient is φ = 26550720.

The previous prime is 47239433. The next prime is 47239441. The reversal of 47239437 is 73493274.

It is an interprime number because it is at equal distance from previous prime (47239433) and next prime (47239441).

It is not a de Polignac number, because 47239437 - 2² = 47239433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47239395 and 47239404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47239433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17158 + ... + 19719.

It is an arithmetic number, because the mean of its divisors is an integer number (4572872).

Almost surely, 2^47239437 is an apocalyptic number.

It is an amenable number.

47239437 is a deficient number, since it is larger than the sum of its proper divisors (25926515).

47239437 is a wasteful number, since it uses less digits than its factorization.

47239437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36948.

The product of its digits is 127008, while the sum is 39.

The square root of 47239437 is about 6873.0951542955. The cubic root of 47239437 is about 361.4943975839.

The spelling of 47239437 in words is "forty-seven million, two hundred thirty-nine thousand, four hundred thirty-seven".